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Diarrhea occurred in 23% and constipation in 17%
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Zhu H, Li B, Huang T, et al
Simplified Folate Metabolism 7 MTHFR is a gene that provides instructions needed to make the MTHFR enzyme, and is located on the short (p) arm of chromosome 1 at position 36.3 ( Figure 2 )
Only vegans and vegetarians are more prone to vitamin B12 levels
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